Micro quiz 7

Question 1

first Agent used for syphilis

Answer 1

arsephenamine

Question 2

first antibiotic used

Answer 2

penicillin

Question 3

what is augmentin?

Answer 3

used to treat Neisseria gonarrheae that has become resistant to betalactams
-beta lactam +calvulinic acid

Question 4

effects 30s ribosome (translation)

Answer 4

Aminoglycoside

Question 5

effects 50s ribosome (translation)

Answer 5

macrolides

Question 6

binds to 30s ribosome(animal feeds)

Answer 6

tetracycline

Question 7

inhibits DNA gyrase (replication)

Answer 7

Quinolones/fluorquinolones

Question 8

polypeptide that interfers with cell wall synth.

Answer 8

Bacitracin

Question 9

polypeptide that destroys permeability of gram - membranes

Answer 9

polymyxin B

Question 10

what organism can grow at refrigeration temps?

and Is environmental

Answer 10

listeria monocytogenes

Question 11

two types of food poisioning?

Answer 11

• food-born infections

- food-born toxins

Question 12

examples of food-born toxins

Answer 12

Botulism

S.aureus toxin

Question 13

toxin that is heat stable(100 for 30-700 min)

Answer 13

S. aureus toxin

Question 14

what are the quantitation methods for food bacteria?

Answer 14

• direct plate counts
• enrichment techniques
• most probable number (MPN) of coliforms and fecal coliorms

Question 15

Tetrahionate and selenite F broth are used for?

Answer 15

-enrichment for salmonella and shigella

Question 16

how can we change our normal flora?

Answer 16

antibiotics use

change in diet

Question 17

meater have more___ than vegetarians

Answer 17

bacteriodes

Question 18

gram___ are common on skin

Answer 18

positive cocci

Question 19

gram positive cocci on the skin

Answer 19

Micrococcus spp.
staphylococcus spp.
propionibacterium acnes

Question 20

T or F

all Spp. of Strep are considered a pathogen

Answer 20

T

Question 21

grouping system used to distinguish beta hemolytic strep based on polysaccharides

Answer 21

Lancefield groupings

Question 22

demineralization of teeth?

what test is used to determine your susceptibility for cavites?

Answer 22

• dental caries

- Snyder test

Question 23

what organism is detected using the Snyder test and causes dental caries?
how does it do it?

Answer 23

Strep. mutans

produces acid from breaking down sucrose to glucose.

Question 24

pockets between gums?

allows growth of anaerobes

Answer 24

periodontitis